Accession Number:

AD0263746

Title:

THE MICROWAVE SPECTRUM AND STRUCTURE OF NSF3

Descriptive Note:

Corporate Author:

HARVARD UNIV CAMBRIDGE MASS MALLINCKRODT LAB

Report Date:

1961-12-01

Pagination or Media Count:

1.0

Abstract:

The action of AgF2 on S4N4 in CCl4 produces a gaseous compound, NSF3, whose structure has been in some doubt. Fragments in the mass spectrum show that the molecular structure is probably as most recently claimed by Glemser Z. Anorg. U. Allgem. Chem., 28497, 1956. The microwave spectrum was studied in the region 8,000 to 60,000 mc with a conventional Stark modulated spectrograph. The spectrum has the simplicity and first order Stark effects characteristic of a symmetric top. From lines assigned to the normal and also to the 34S and 15N species occuring in natural abundance, the following set of structural parameters was obtained dS-N 1.416 Angstroms, dS-F 1.552 Angstroms, and FSF 94 degrees 2 minutes. This structure is thus confirmed and made quantitative. In addition, the dipole moment was measured and found to be 1.91 .03 Debye. The quadrupole coupling constant of the 14N nucleus is 1.19 .05 mc. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE